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(No Model.)

G. H. HARVEYL V PRESERVE JAR FASTENING. v No. 376,953. Patented Jan. 24,1838.

WITNESSES.-

I i l/VI/E/VTOR 'NITED STATES PA ENT OFFICE.

GEORGE H. HARVEY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO ALBERT G. ELLIS, OF SAME PLACE.

PRESERVE-JAR FASTENING.

SPECIFICATION forming part of LettersPatent No. 376,953, dated January 24, 18 88 Application tiled June 3, 1887. Serial No. 240,122. (No model.)

To all whom. it may concern..-

Be it known that I, GEORGE H. HARVEY, of. Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Preserve-Jar Fastcnings; and I do hereby declare the following to be a full, clear,and exact description thereof.

Inthc construction of preserve-jar fastenings great trouble has been experienced in making them airtight, and in order to do this expensive and complicated devices have been resorted to. These, it is true, have accomplished the object sought for; but objection is made as to their cost..

My invention relates to an improvementin fruit-jar fasteners; and it consists in a jar-having spiral lugs, a lid having a stud in which is a vent, said stud surrounded by a groove in which is a flexible gasket, and a clamp having a portion of its lower face enlarged, all combined, arranged, and operating substantially as hereinafter described.

To enable others skilled in the art with which my invention is most nearly connected to make and use it, I will proceed to describe its construction and operation.

In the accompanying drawings, which form part of my specification, Figure 1 is a side elevation of a fruit-jar with its lid and clamp shown in section. Fig. 2 is a top view or plan of the lid. Fig. 3 is a top view of the clamp. In the drawings, A represents the jar, B the lid, K the stud having a vent, E, all being of the ordinary construction.

0 represents the clamp, which is made of steel or other suitable material, and is provided on its under face with a convex or swelled portion made to fit and press upon the rubber gasket G, placed in the groove surrounding the stud K, in which is a vent, E.

The operation of my invention is as follows 2.

Fruit or other article to be preserved is placed in thejar and the lid is fitted to it in theusual manner.. A gasket, G, made of gum or other suitable material, is then-placed in the groove in the lid, said groove surrounding a stud,'K, in which is the. vent E. Said gasket G isjust of sufficient size to fill the groove and'a little thicker than the height of the stud K. The

clamp O is then placed in position, itslips I engaging with the spiral lugs H. The clamp, v

being turned,will travel on the spiral lugs and A. jar having spiral lugs, a lid having astud inwhich is a vent, said stud surrounded by- -a groove in which is .a flexible gasket, and a clamp having a portion of its lower face eu-v larged, all combined, arranged, and operating i 1 with relation to each other substantially as herein described,a nd for the purpose set forth;

In testimony whereof I havehereunto set my hand this 28th day of May, A. D. 1887.

Witnesses:

L. S. MOKEEVER, S. A. PARR. 

